From unclean room to clean room:
1. Person came from unclean area at door of the air shower
2. Reach the sensing area, the door opens automatically
3. After the man into the air shower room, entrance door closed automatically
at a set time

4. At this time air shower start blowing automatically
5. Air showering end at a set time, the exit door opened automatically, people
out
6. After people out, exit door closing the door at a set time back to standby

From clean room to unclean room:

1. Person came from clean area at door of the
air shower
2. Reach the sensing area, the door opens automatically
3. After the man into the air shower room, the back door closed automatically
at a set time

4. People walked through sensing area, the front door
opened, people out
6. After people out, exit door closing the door at a set time back to standby